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The County of San Mateo Environmental Health Department monitored 21 beach locations on a weekly basis year-round, from as far upcoast as Sharp Park Beach in Pacifica to a downcoast location of Gazos Beach at Gazos Creek. This year’s report welcomes the addition of two new monitoring sites in San Mateo County: one additional site in Pillar Point Harbor, and the other at Dunes Beach. The Health Department utilizes volunteers from the local Surfrider Foundation chapter to assist in the collection of water samples. Samples are collected at a distance of 25 yards north or south of the mouth of a storm drain or creek. For additional water
quality information visit the San
Mateo County Department of Environmental
Health website.
This past year, San Mateo beaches showed excellent summer dry weather water quality (Figure 13 and 14). 19 (90%) of the 21 beach monitoring locations received A grades. Two locations again stood out from the rest with very poor dry weather water quality: Pillar Point Harbor at Capistrano Ave. (F), and Venice Beach at Frenchman’s Creek (F). This is the third year that Pillar Point Harbor at Capistrano Avenue has made it onto the statewide ‘Beach Bummer’ list. However, this monitoring location is not a frequently visited beach.
Wet weather water quality in San Mateo was fair. 76% of beaches received A or B grades during wet weather. Linda Mar Beach at San Pedro Creek (D), three locations in Pillar Point Harbor (all Fs), and Venice Beach (F) received the county’s worst wet weather grades.
Sewage
Spill Summary
There were zero (0) reported sewage spills in San
Mateo County that led to beach closures.
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